diff --git a/docs/source_docs/user_guide/inputs/fluid_model.rst b/docs/source_docs/user_guide/inputs/fluid_model.rst
index fbdd332ad9745fdfdd9af9d8120884b6688db29d..a55b4a22c26742702d5d34ec303a2069081e2257 100644
--- a/docs/source_docs/user_guide/inputs/fluid_model.rst
+++ b/docs/source_docs/user_guide/inputs/fluid_model.rst
@@ -176,12 +176,13 @@ are not solved.
    mfix.advect_enthalpy = 0
    mfix.solve_species   = 0
 
+
    # Fluid model settings
    # -----------------------------------------------------------------------
    fluid.solve = fluid0
 
-   fluid.viscosity          = constant
-   fluid.viscosity.constant = 1.8e-5
+   fluid.viscosity.molecular = constant
+   fluid.viscosity.molecular.constant = 1.8e-5
 
 
    # Initial Conditions
@@ -193,6 +194,7 @@ are not solved.
 
    ic.full-domain.fluid0.velocity  =  0.0  0.0  0.0
 
+
    # Boundary Conditions
    # -----------------------------------------------------------------------
    bc.regions = inlet  outlet
@@ -233,8 +235,8 @@ pressure when evaluating the equation of state.
    # -----------------------------------------------------------------------
    fluid.solve = fluid0
 
-   fluid.viscosity          = constant
-   fluid.viscosity.constant = 1.8e-5
+   fluid.viscosity.molecular = constant
+   fluid.viscosity.molecular.constant = 1.8e-5
 
    fluid.molecular_weight = 29.0e-3
 
@@ -286,12 +288,13 @@ thermodynamic pressure for the system.
    mfix.advect_enthalpy = 1
    mfix.solve_species   = 0
 
+
    # Fluid model settings
    # -----------------------------------------------------------------------
    fluid.solve = fluid0
 
-   fluid.viscosity          = constant
-   fluid.viscosity.constant = 2.0e-5
+   fluid.viscosity.molecular = constant
+   fluid.viscosity.molecular.constant = 2.0e-5
 
    fluid.thermal_conductivity = constant
    fluid.thermal_conductivity.constant = 0.026